The Effects of Maximum Attapulgite Aggregate Size and Steel Fibers Content on Fresh and Some Mechanical Properties of Lightweight Self Compacting Concrete
The main objectives of this study were investigating the effects of the maximum size of coarse Attapulgite aggregate and micro steel fiber content on fresh and some mechanical properties of steel fibers reinforced lightweight self-compacting concrete (SFLWSCC). Two series of mixes were used dependin...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
University of Baghdad
2020-05-01
|
| Series: | Journal of Engineering |
| Subjects: | |
| Online Access: | http://joe.uobaghdad.edu.iq/index.php/main/article/view/1011 |
| _version_ | 1797711153460150272 |
|---|---|
| author | shubbar jawad Al-obaidey |
| author_facet | shubbar jawad Al-obaidey |
| author_sort | shubbar jawad Al-obaidey |
| collection | DOAJ |
| description | The main objectives of this study were investigating the effects of the maximum size of coarse Attapulgite aggregate and micro steel fiber content on fresh and some mechanical properties of steel fibers reinforced lightweight self-compacting concrete (SFLWSCC). Two series of mixes were used depending on maximum aggregate size (12.5 and 19) mm, for each series three different steel fibers content were used (0.5 %, 1%, and 1.5%). To evaluate the fresh properties, tests of slump flow, T500 mm, V funnel time, and J ring were carried out. Tests of compressive strength, splitting tensile strength, flexural tensile strength, and calculated equilibrium density were done to evaluate mechanical properties. For reference mixes, the results showed that mixes with a larger maximum aggregate size of 19 mm exhibited better fresh properties, while mechanical properties negatively affected by using a larger maximum aggregate size. The results also showed that using steel fibers led to negative effects on fresh properties, especially with higher steel fibers content and larger maximum aggregate size. The marginal effect of steel fibers on compressive strength was noticed, while for both splitting and flexural tensile strength, significant increase was obtained with increasing of steel fibers content. The properties of SFLWSCC in the fresh state had a considerable effect on mechanical properties, whereas with the best fresh properties, the best mechanical properties can be obtained. |
| first_indexed | 2024-03-12T07:02:53Z |
| format | Article |
| id | doaj.art-1e3e414406944f838cf4035822229f14 |
| institution | Directory Open Access Journal |
| issn | 1726-4073 2520-3339 |
| language | English |
| last_indexed | 2024-03-12T07:02:53Z |
| publishDate | 2020-05-01 |
| publisher | University of Baghdad |
| record_format | Article |
| series | Journal of Engineering |
| spelling | doaj.art-1e3e414406944f838cf4035822229f142023-09-02T23:35:55ZengUniversity of BaghdadJournal of Engineering1726-40732520-33392020-05-0126510.31026/j.eng.2020.05.12The Effects of Maximum Attapulgite Aggregate Size and Steel Fibers Content on Fresh and Some Mechanical Properties of Lightweight Self Compacting Concreteshubbar jawad Al-obaidey0Civil Engineering Department, University of Technology, Baghdad - Iraq.The main objectives of this study were investigating the effects of the maximum size of coarse Attapulgite aggregate and micro steel fiber content on fresh and some mechanical properties of steel fibers reinforced lightweight self-compacting concrete (SFLWSCC). Two series of mixes were used depending on maximum aggregate size (12.5 and 19) mm, for each series three different steel fibers content were used (0.5 %, 1%, and 1.5%). To evaluate the fresh properties, tests of slump flow, T500 mm, V funnel time, and J ring were carried out. Tests of compressive strength, splitting tensile strength, flexural tensile strength, and calculated equilibrium density were done to evaluate mechanical properties. For reference mixes, the results showed that mixes with a larger maximum aggregate size of 19 mm exhibited better fresh properties, while mechanical properties negatively affected by using a larger maximum aggregate size. The results also showed that using steel fibers led to negative effects on fresh properties, especially with higher steel fibers content and larger maximum aggregate size. The marginal effect of steel fibers on compressive strength was noticed, while for both splitting and flexural tensile strength, significant increase was obtained with increasing of steel fibers content. The properties of SFLWSCC in the fresh state had a considerable effect on mechanical properties, whereas with the best fresh properties, the best mechanical properties can be obtained.http://joe.uobaghdad.edu.iq/index.php/main/article/view/1011steel fiber, lightweight concrete, self-compacting concrete, steel fiber reinforced lightweight self- compacting concrete. |
| spellingShingle | shubbar jawad Al-obaidey The Effects of Maximum Attapulgite Aggregate Size and Steel Fibers Content on Fresh and Some Mechanical Properties of Lightweight Self Compacting Concrete Journal of Engineering steel fiber, lightweight concrete, self-compacting concrete, steel fiber reinforced lightweight self- compacting concrete. |
| title | The Effects of Maximum Attapulgite Aggregate Size and Steel Fibers Content on Fresh and Some Mechanical Properties of Lightweight Self Compacting Concrete |
| title_full | The Effects of Maximum Attapulgite Aggregate Size and Steel Fibers Content on Fresh and Some Mechanical Properties of Lightweight Self Compacting Concrete |
| title_fullStr | The Effects of Maximum Attapulgite Aggregate Size and Steel Fibers Content on Fresh and Some Mechanical Properties of Lightweight Self Compacting Concrete |
| title_full_unstemmed | The Effects of Maximum Attapulgite Aggregate Size and Steel Fibers Content on Fresh and Some Mechanical Properties of Lightweight Self Compacting Concrete |
| title_short | The Effects of Maximum Attapulgite Aggregate Size and Steel Fibers Content on Fresh and Some Mechanical Properties of Lightweight Self Compacting Concrete |
| title_sort | effects of maximum attapulgite aggregate size and steel fibers content on fresh and some mechanical properties of lightweight self compacting concrete |
| topic | steel fiber, lightweight concrete, self-compacting concrete, steel fiber reinforced lightweight self- compacting concrete. |
| url | http://joe.uobaghdad.edu.iq/index.php/main/article/view/1011 |
| work_keys_str_mv | AT shubbarjawadalobaidey theeffectsofmaximumattapulgiteaggregatesizeandsteelfiberscontentonfreshandsomemechanicalpropertiesoflightweightselfcompactingconcrete AT shubbarjawadalobaidey effectsofmaximumattapulgiteaggregatesizeandsteelfiberscontentonfreshandsomemechanicalpropertiesoflightweightselfcompactingconcrete |